feat(web): 工作台前端 API 客户端 + TodoList 组件

- actionInbox.ts 新增 WorkbenchStats/TeamOverview 类型和 stats()/team() API
- 新建 workbench/TodoList.tsx 待办列表组件（分页 + 类型/优先级标签）

apps/web/src/api/health/actionInbox.ts

@@ -42,6 +42,35 @@ export interface ThreadResponse {
   available_actions: ActionDefinition[];
 }
 
+export interface WorkbenchStats {
+  total_pending: number;
+  ai_suggestion_pending: number;
+  urgent_alerts: number;
+  followup_due: number;
+  completion_rate: number | null;
+}
+
+export interface TeamMemberOverview {
+  user_id: string;
+  name: string;
+  title: string;
+  pending_count: number;
+  completed_count: number;
+  overdue_count: number;
+  completion_rate: number;
+}
+
+export interface TeamOverview {
+  members: TeamMemberOverview[];
+  risk_distribution: {
+    high: number;
+    medium: number;
+    low: number;
+  };
+  total_pending: number;
+  total_completed: number;
+}
+
 export const actionInboxApi = {
   list: async (params?: {
     status?: string;
@@ -63,4 +92,20 @@ export const actionInboxApi = {
     }>(`/health/action-inbox/${encodeURIComponent(sourceRef)}/thread`);
     return data.data;
   },
+
+  stats: async () => {
+    const { data } = await client.get<{
+      success: boolean;
+      data: WorkbenchStats;
+    }>('/health/action-inbox/stats');
+    return data.data;
+  },
+
+  team: async () => {
+    const { data } = await client.get<{
+      success: boolean;
+      data: TeamOverview;
+    }>('/health/action-inbox/team');
+    return data.data;
+  },
 };

apps/web/src/pages/health/components/workbench/TodoList.tsx

@@ -0,0 +1,103 @@
+import { useEffect, useState, useCallback } from 'react';
+import { List, Tag, Empty, Spin, Button, Space } from 'antd';
+import {
+  BellOutlined,
+  RobotOutlined,
+  TeamOutlined,
+  WarningOutlined,
+} from '@ant-design/icons';
+import { actionInboxApi, type ActionItem, type ActionType } from '../../../../api/health/actionInbox';
+
+const TYPE_CONFIG: Record<ActionType, { label: string; color: string; icon: React.ReactNode }> = {
+  ai_suggestion: { label: 'AI 建议', color: 'blue', icon: <RobotOutlined /> },
+  alert: { label: '告警', color: 'red', icon: <WarningOutlined /> },
+  followup: { label: '随访', color: 'green', icon: <TeamOutlined /> },
+  data_anomaly: { label: '数据异常', color: 'orange', icon: <BellOutlined /> },
+};
+
+const PRIORITY_COLOR: Record<string, string> = {
+  urgent: 'red',
+  high: 'volcano',
+  medium: 'orange',
+  low: 'default',
+};
+
+interface TodoListProps {
+  onItemClick?: (item: ActionItem) => void;
+}
+
+export default function TodoList({ onItemClick }: TodoListProps) {
+  const [items, setItems] = useState<ActionItem[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [page, setPage] = useState(1);
+  const [total, setTotal] = useState(0);
+
+  const fetchItems = useCallback(async (p: number) => {
+    setLoading(true);
+    try {
+      const res = await actionInboxApi.list({
+        status: 'pending',
+        page: p,
+        page_size: 10,
+      });
+      setItems(res.items);
+      setTotal(res.total);
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    fetchItems(page);
+  }, [page, fetchItems]);
+
+  if (loading) {
+    return <div style={{ textAlign: 'center', padding: 40 }}><Spin /></div>;
+  }
+
+  if (items.length === 0) {
+    return <Empty description="暂无待处理事项" />;
+  }
+
+  return (
+    <List
+      dataSource={items}
+      pagination={{
+        current: page,
+        total,
+        pageSize: 10,
+        size: 'small',
+        onChange: setPage,
+      }}
+      renderItem={(item) => {
+        const cfg = TYPE_CONFIG[item.action_type];
+        return (
+          <List.Item
+            style={{ cursor: 'pointer', padding: '8px 12px' }}
+            onClick={() => onItemClick?.(item)}
+          >
+            <List.Item.Meta
+              avatar={<span style={{ fontSize: 18 }}>{cfg.icon}</span>}
+              title={
+                <Space>
+                  <span>{item.title}</span>
+                  <Tag color={cfg.color}>{cfg.label}</Tag>
+                  <Tag color={PRIORITY_COLOR[item.priority]}>{item.priority}</Tag>
+                </Space>
+              }
+              description={
+                <Space direction="vertical" size={2}>
+                  <span>{item.summary}</span>
+                  <span style={{ color: '#999', fontSize: 12 }}>
+                    {item.patient_name} · {new Date(item.created_at).toLocaleDateString()}
+                  </span>
+                </Space>
+              }
+            />
+            <Button type="link" size="small">处理</Button>
+          </List.Item>
+        );
+      }}
+    />
+  );
+}